Island



I (No Model.)

J. J. 8; J. A. OOONNOR.

MAGHINE FOR TWISTING THRBAD.. No. 372,700. Patented Nov. 8, 1887.

JIQ' A INVENTUHS.

N. PETERS, PholoL'lXhognplwr. wismngwn. D. C.

"tlnrrjen S'rarns Fami iar tries.

JEREMIAH J. OCONNOR AXD JOHX A. OCONNOR, OF PAXVTUOKET, AS-

SIGNORS OF ONE-THIRD TO ALBERT H. ALLEN, OF PROVIDENCE,

RHODE ISLAND.

MACHINE FOR TVHSTING THREAD.

SPECIFICATION forming part of Letters Patent No. 372,700, dated November 8, 1887.

Application filed February 1S, 1837. Serial No. 228.066.

around the rolls D B. From the roll B the T aZZ whom, nuty concern: thread passes over a guide-rod, K, thence to Be it known that we, JEREMIAH J. OCON- the receiving-bobbin L,througl1 the usual trav- NOR and JOHN A. OCONNOR, both of Paweler, which works on the ring m, mounted on tucket, in the county of Providence and State the traverserail M. The bobbin Lis mounted 5 of Rhode Island, have jointly invented a new on the spindle N, which is driven by a band,

and useful Improvementin Machines for Twistn, from the drum 0.

ing Thread, &c.; and we dohereby declare the The machine is supplied with as many sevfollo'wing specification, taken in connection ering devices G as there are threads running with the accompanying drawings, forming a to the rolls B D. Thedevice G, as particularly IO part of the same, to be a description thereof. shown in Fig. 4., consists of two members, gg,

This invention is an improvement upon that the former of which is movable and the latter, shown and described in Letters Patent of the preferably, rigidly secured to the side of the United States,No. 854,926, issued to us Decemtrough J or other support. The member 9 her 28, 1886; and it consists in certain features slides on or through the member 9, and said If, of construction and arrangement, whereby the memberghas an opening, 2, through which the mechanism for severing the thread is simplithread passes on its way from the spools E, and tied and said mechanism is positively operated is preferably provided with a side slot,3,which independent of thetop rolls of the machine, as allows the thread to be quickly and easily inhereinafter described and claimed. 7 sertcdinto said opening. Forconvenience,tl1e

20 In theaccompanying drawings, Figurel repmember r may be composed of two parts, 4 5, 7o resents a front view of a portion of a threadthe latter of steel, preferably, having a sharp twisting machine embodying the invention. cutting-edge, G, at the top. The edge7 of the Fig. 2 shows a vertical section of the same on member 9 may also be a enttingedge, if dcline 00 ac. Fig. 3 represents a part of said secsired. To the mcmberg a bell-crank lever, O,

25 tional view on a larger scale. Fig. 4 shows in is pivoted,the lower end, 0, of which is hooked, perspective the shear for sevcrin g the thread. and the outer end, 0, of which is formed into XVith the exception ofthe device for severing an eye, or otherwise shaped so as to be supthe thread and the mechanism for operating the ported by the thread, as shown in Figs. 2 and 3. same, the machine shown in the drawings is The member 5 of the device G may be held 0 an ordinary thread-twisting machine. in the raised normal position (shown by full A is the frame. lines in Figs. 2 and 3) by friction, as by fitting B is the lower drawing-roll, which is driven sufiiciently tightly in the member g,- but a from the drum 0 by a wellknown train of spring, 8, is preferably employed for such purgears, c, c, 0 0", and 0', (shown in full lines at pose, which spring is secured to the member 5 Fig. 1 and by dotted circles in Fig. 2,) the first g and bears upon the member 9, as shown in gear of the train being secured to the drum and Fig. 1, with the requisite force to retain the the last to the shaft 11 of the roll B. member y at the proper elevation.

D are the upper rollsone for each thread-- For operating the severing devices G the which are loosely mounted to revolvein bearmachine is provided with suitable means-- 40 ingsd, Fig.1, by frictional contact with the roll such, for instance, as ashaft, F, furnished with B, or the threads passing between the rolls. armed wheels Q-for engaging the bent ends 0 The threads 0 are delivered from spools or of the leversO when the threads break, so as to bobbins E, mounted on a creel or stand. Each pull downwardlythe membersg, through which of these threads, either singly or as one of a cathe broken threads run. As shown in Fig. 1,

5 ble, passes first through a guide-eye,f, on the the shaft P extends longitudinally of the ma- 5 traverse-bar F, then through the device Gr for chine, and the armed wheels Q are secured to severing the thread, then,p referably, through the shaft immediately behind the vertical arms another guide-eye, h, then around a rod,j, in of the levers 0, respectively. The shaft P is the water-trough J, then over and partially driven by the short shaft R, to which the gear 50 c is secured, the said shafts being preferably connected with each other by a clutch, S, the members of which can be disengaged, when desired, by a shipper, s, Fig. 2. Normally the hooked ends 0 of the levers O are held out of the path of movement of the armed wheels Q by the threads which support the outer ends, 0, of said lever. When a thread breaks between the rolls B D and the spindles, however, the end 0 of that lever 0 whose end 0 was supported by such thread will swing toward the shaft P, as shown by dotted lines in Fig. 2, and be engaged by one of the arms q of that wheel Q which is placed immediately in the rear of said lever. The positive rotation of the wheel will draw downwardly the lever O and the shear member 9, to which it is pivoted, and thereby cause the thread to be severed. The delivery from that spool Whose thread has been cut will be stopped, therefore, and no thread will run to waste. In piecing up the ends the thread is passed through the eye h, under the rod 3', over the rolls D B, thence through the eye 0 of the lever 0, then over the rod K, then through the traveler, and is tied to the end on the receiving-bobbin. The member g of the severing device is then raised and the thread easily passed through the side slot, 3, into the opening 2. i

What we claim, and desire to secure by Letters Patent, is

1. The combination, with a thread-severing device, substantially as described, of a bellcrank lever pivoted directly to one member of said device and adapted to be held in anormal position by a passing thread, as described, and

means, substantially as described, for engaging said lever when the thread breaks,and thereby operating the severing device, substantially as set forth.

2. The combination, with a thread-severing device having a movable member, substantially as described, and means, substantially as described, for retaining said member in normal position, of a bell-crank lever pivoted directly to said movable member, and adapted, as described, to be held in normal position by a passing thread, and means, substantially as described, for engaging said lever when the thread breaks, and thereby operating the severing device, substantially as set forth.

3. The combination of the membersy and g, forming the thread-severing device G, the former member having an opening, 2, and side slot, 3, into said opening, substantially as set forth.

4. The thread-severer herein described, consisting of the; members 99, the former member having an opening, 2, and side slot, 3, the spring 8,for holding said members in position with relation to each other, and the bell-crank lever O, pivoted to the member 9, the whole being adapted to be attached toa machine for twisting thread, 8m, substantially as andfor the purposes specified.

JEREMIAH J. OGONNOR. JOHN A. OCON NOR. 

